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1961 - 1966 F-100 & Larger F-Series Trucks Discuss the Slick Sixties Ford Truck

66 F100 engine ID

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Old Apr 6, 2016 | 07:43 PM
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66 F100 engine ID

I have a 66 F100 that has an engine I was told is not the original. I would like to list the truck for sale but want to make sure the ad is correct. Any help would be appreciated. Thanks, here are some pictures.






 
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Old Apr 6, 2016 | 07:59 PM
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It's an FE motor painted the Ford blue that started in the '66 model year.

Beyond that, we know it's a 2bbl, non-oem air cleaner, and a little crusty.

352, 360, 390, all were equipped with 2bbl carbs, and they pretty much look the same externally. Can you see any casting codes on the manifold or cylinder heads (between the middle cylinders).

A D2TE...code would tell us it is a much later ('72 or later) motor for example.
 
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Old Apr 6, 2016 | 08:05 PM
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I will look tomorrow. So this may be the original engine?
 
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Old Apr 6, 2016 | 08:50 PM
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Possible. It would be a 352, and your casting numbers would be C6 or earlier. (C for 1960s, 5 = 1965, 4 = 1964 etc)
 
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Old Apr 7, 2016 | 03:25 AM
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Agree with 85, visually it is correct for that truck. No way that any of us can tell if it is original, but it is same FE family.



John
 
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Old Apr 7, 2016 | 09:34 AM
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Understand one way to determine is by measuring the stroke?

3.5 is the stroke for the 352 and 360 engines

3.78 is the stroke for the 390
 
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Old Apr 7, 2016 | 11:13 AM
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Thanks guys, I will try to look at it tonight or this weekend. Where would the casting numbers be? Could someone show a picture please? I'm surprised there is not a serial number on it.
 
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Old Apr 7, 2016 | 03:12 PM
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The Fordification forum use to have a tech article listing the Casting #'s and the best guess year with the CID, not sure if still on their web-site? However; as mentioned, the casting #'s should narrow the approximate year the block was manufactured but not necessarily the CID, considering the engine is possibly 50 yrs. old and who knows whether PO had the engine rebuilt and increased the CID???

In trying to determine, perhaps a wooden dowel, or something similar, could be used by inserting in the spark plug opening, marking at the highest, then the lowest point and measure the difference??
 
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Old Apr 7, 2016 | 03:59 PM
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If you click on this link and scroll down just past the stainless steel hub caps you can see some of the numbers that can help ID an FE engine. Typically in about the same locations, just the numbers vary as you can imagine.

https://www.ford-trucks.com/forums/1...l#post13584942

.
 
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Old Apr 7, 2016 | 04:17 PM
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The valve covers and t-stat housing indicate a later motor, maybe 68-ish imo.
Eric
 
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Old Apr 8, 2016 | 01:12 PM
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Powered by Ford valve covers introduced in 1967.

352: 1958/67 Ford Passenger Cars; 1965/67 F100/350.
 

Last edited by NumberDummy; Apr 8, 2016 at 01:15 PM.
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Old Apr 8, 2016 | 05:15 PM
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The intake number was d3te9425a1a which is a 73 I think.
 
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Old Apr 8, 2016 | 06:25 PM
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Found the Fordification Casting #'s link:

Ford FE Engine Block Casting Numbers - FORDification.com
 
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